package part1.api.part1.api.io.iotest2;

import java.io.*;

public class CopyDemo3Buffered {
    public static void main(String[] args) throws IOException {
        FileInputStream fis = new FileInputStream("壁纸2.png");
        BufferedInputStream bis = new BufferedInputStream(fis);
        FileOutputStream fos = new FileOutputStream("壁纸3.png");
        BufferedOutputStream bos = new BufferedOutputStream(fos);
        long start = System.currentTimeMillis();
        int d;
        while ((d=bis.read()) != -1){
            bos.write(d);
        }
        long end = System.currentTimeMillis();
        System.out.println("复制完毕"+(end-start));
        bis.close();
        bos.close();
    }
}
